- prevent warnings when looking up a GIMP color with no palette
parameter and $ENV{HOME} not set.
- added VERSION numbers to most .pms
+- convert t/t104ppm.t to Test::More
+- convert t/t107bmp.t to Test::More
+- convert t/t108tga.t to Test::More
+- error messages generated reading JPEG or PNG images are now
+ available via errstr()
+- implement/test/document set_file_limits()/get_file_limits() methods,
+ which allow limits on the size of image files read.
+- new example for convert() method based on Leolo's query
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